Household garbage pyrolysis and gasification comprehensive treatment method and process

Abstract

The invention discloses a household garbage pyrolysis and gasification comprehensive treatment method and process. The method comprises the following steps: pretreating garbage, and recycling metal and garbage leachate; uniformly mixing an ion capturing agent into the garbage for drying; collecting odor generated in pretreatment and drying treatment; adding the ion capturing agent and carrying out pyrolysis gasification to obtain combustible gas, liquid oil and solid fuel; carrying out secondary combustion on the combustible gas and the liquid oil, and regulating and controlling the combustion temperature in combination with the landfill leachate to generate high-temperature flue gas; mixing the odor with the flue gas to prepare high-temperature air, and circularly supplying combustion air; performing quenching treatment on high-temperature flue gas and preparing water vapor; and recycling the water vapor. Compared with the prior art, the garbage leachate and odor can be effectively treated, secondary pollution of harmful gas to the atmosphere is reduced, the garbage pyrolysis efficiency and the concentration of combustible gas are guaranteed, and the comprehensive utilization rate of heat energy in garbage pyrolysis is increased.

Description

Technical field [0001] The present application relates to the field of domestic waste treatment, and more particularly, it involves a comprehensive treatment method and process of domestic waste heat dissipating gasification. Background technique [0002] With the continuous improvement of people's living standards, the output of domestic garbage is getting bigger and bigger, and the "garbage bage" is serious, and the treatment of domestic garbage is an urgent need. However, the ingredients of domestic waste are complex, and the water content is high, and the difficulty is difficult, if the processing is improper, it may cause serious secondary pollution. In order to achieve the purpose of reduction, resource and harmless treatment of domestic garbage, my country has developed three commonly used domestic waste treatment: hygiene landfill, incineration and compost. [0003] With the advancement of technology, garbage is used as a new trend of domestic waste treatment into people'...

AI Technical Summary

Problems solved by technology

However, there are many problems in the treatment of waste in the current pyrolysis gasification method: First, due to the high moisture content and complex composition of domestic waste, which affect the pyrolysis efficiency and the concentration of combustible gas, it is necessary to increase the cost and investment to purify the combustible gas ; The second, the existing pyrolysis method does not process the leachate and the odor generated by the garbage dump; the third, in the process of processing, dioxins, furans and acid gases are used to form a single post-treatment, which increases the Risk of Secondary Air Pollution

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